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參數資料
| 型號： | TLV2548IPWLE |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| 文件頁數： | 36/39頁 |
| 文件大小： | 648K |
| 代理商： | TLV2548IPWLE |
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TLV2544, TLV2548
2.7 V TO 5.5 V, 12-BIT, 200 KSPS, 4/8 CHANNEL, LOW POWER,
SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN
SLAS198A –FEBRUARY 1999– REVISED AUGUST 1999
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
control and timing
start of the cycle:
D When FS is not used ( FS = 1 at the falling edge of CS), the falling edge of CS is the start of the cycle. Input
data is shifted in on the rising edge of SCLK, and output data changes on the falling edge of SCLK. This
is typically used for a SPI microcontroller although it can also be used for a DSP.
D When FS is used ( FS is an active signal from a DSP), the falling edge of FS is the start of the cycle. Input
data is shifted in on the falling edge, and output data changes on the rising edge of SCLK. This is typically
used for a TMS320 DSP.
first 4-MSBs: the command register (CMR)
The TLV2544/TLV2548 have a 4-bit command set (see Table 1) plus a 12-bit configuration data field. Most of
the commands require only the first 4 MSBs, i.e. without the 12-bit data field.
NOTE:
The device requires a write CFR (configuration register) with 000h data (write A000h to the serial
input) at power up to initialize host select mode.
The valid commands are listed in Table 1.
Table 1. TLV2544/TLV2548 Command Set
SDI D(15–12) BINARY, HEX
TLV2548 COMMAND
TLV2544 COMMAND
0000b
0000h
Select analog input channel 0
0001b
1000h
Select analog input channel 1
N/A
0010b
2000h
Select analog input channel 2
Select analog input channel 1
0011b
3000h
Select analog input channel 3
N/A
0100b
4000h
Select analog input channel 4
Select analog input channel 2
0101b
5000h
Select analog input channel 5
N/A
0110b
6000h
Select analog input channel 6
Select analog input channel 3
0111b
7000h
Select analog input channel 7
N/A
1000b
8000h
SW power down (analog + reference)
1001b
9000h
Read CFR register data shown as SDO D(11–0)
1010b
A000h plus data
Write CFR followed by 12-bit data, e.g., 0A100h means external reference,
short sampling, SCLK/4, single shot, INT
1011b
B000h
Select test, voltage = (REFP+REFM)/2
1100b
C000h
Select test, voltage = REFM
1101b
D000h
Select test, voltage = REFP
1110b
E000h
FIFO read, FIFO contents shown as SDO D(15–4), D(3–0) = 0000
1111b
F000h plus data
Reserved
1111b
F000h plus data
Reserved
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TLV2548IPWR | 功能描述:模數轉換器 - ADC 12-Bit 200 kSPS Serial Out RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| TLV2548IPWRG4 | 功能描述:模數轉換器 - ADC 12-Bit 200 kSPS Serial Out RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| TLV2548MFKB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TLV2548MPWREP | 功能描述:模數轉換器 - ADC EP 2B 200 KSPS ADC Ser. Out RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| TLV2548QDW | 功能描述:模數轉換器 - ADC 12 Bit 200 kSPS Lo Pwr RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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